9 Flags is a world geography quiz game with two playing modes: COUNTRIES and CAPITALS.
- In COUNTRIES mode, given a country name the player must select the matching flag.
- In CAPITALS mode, given a capital city the player must select the flag of the matching country.
In both modes the game starts with a grid of 4 world flags and as the game advances and difficulty increases, the number of flags increases to 9.
Note: In the context of this game, and for the sake of simplicity, "country" refers to a sovereign country or independent territory, although in some cases such status is not universally recognized. This game does not represent any position with regard to the legal status or policy of the entities mentioned; its sole purpose is to entertain and promote the general knowledge in relation to world geography by the means of a quiz challenge based on world flags, countries and capitals.